CBSE Class 10 Answered
a number of light bulbs are to be connected to a power source in which case will they provide more brightness in series or in parallel.
Asked by pr_prashant | 04 Dec, 2010, 12:00: AM
Expert Answer
Dear student,
The brightest bulb will have the biggest p.d. across it. If a bulb needs a big p.d. for a given current then it must have a high resistance. So in series high resistance bulbs are brighter because they have a bigger p.d. across them.
In parallel circuits low resistance bulbs are brighter because they have a bigger current through them for the same p.d.
Hope this helps.
Team
Topperlearning.com
Answered by | 06 Dec, 2010, 12:34: PM
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